Electric lamp with two shades



April 23, 1946. HSTQR 2,398,974

ELECTRIC LAMP WITH TWO SHADES Filed April 14, 1944.

INVENTOR.

Patented Apr. 23, 1946 UNITED STATES PATENT OFFICE ELECTRIC LAMP WITH TWO SHADES Harry Storm, Los Angeles, Calif.

Application April 14, 1944, Serial No. 531,013

2 Claims. (Cl. 240-49) This invention relates to ornamental lighting devices such as are used in store windows, cafs and on radio cabinets; the object being to attract attention in the case of store window display.

Another object of the invention is to provide a-scintillating lampthat can be produced at comparatively low cost, and which has a minimum of moving parts.

In the accompanying drawing, forming a part of this specification, like numerals are employed to designate like parts throughout same.

Referring to the accompanying drawing:

Fig. 1 is an elevation showing my invention, partly in section to show internal arrangement thereof.

Fig. 2 is an isometric view of the revolving inner shade.

Fig. 3 is an isometric view of two (2) of the propelling vanes.

Fig. 4 is a plan view of the wire frame which supports the shades.

In Figure 1, is disclosed a suitable lamp standard 5, which is furnished with an electric light socket and electric light bulb 6. To saidbulb is clamped by means of the wire loops, l'!, a wire framework, consisting of a disk 8 in which the said loops 1-1 are riveted, and a plurality of supporting arms 9-9, etc.; which are likewise riveted to said disk 8 and which extend radially outwards and downwards, their outer ends terminating in a small upwardly bent portion 9a to support and confine in position the outer lamp shade Ill.

The said arms 9, are further held in relative position by a wire ring H to which they are welded. I

The wire loops 1-! hold the frame in place by their opposing spring action. Suspended within the said outer shade l and conforming in shape with same is, an inner shade l2, enough clearance being provided between the two shades to allow the said inner shade to revolve in respect to its vertical axis without interference.

Both inner and outer shades are preferably of the usual conical shape, the said inner shade being furnished with an inwardly projecting flange l4 around its upper rim to which is attached a plurality of radially disposed propeller vanes I5--l5, etc.; by means of outwardly turned lugs l5a, said vanes converge toward and are afiixed to a concentrically disposed hub plate [6 at I 55-11.

The inner shade I2 is pivotally mounted upon an upwardly projecting pintle I3 which latter is riveted into the disc 8; the upper end of said pintle I3 is tapered to a point which point fits into an upwardly extended recess l8 in the center of the hub plate.

The aforementioned propeller vanes are pitched at such an angle to a horizontal plane that a current of rising air {will cause them )to rotate.

The atmosphere encompassed within the said inner shade, on becoming heated by the medium of-the electric light bulb during operation, loses density thereby and forms an upward. current and drives the propeller vanes in the manner of a turbine, the tapered end of the aforementioned pintle support offering very slight frictional resistance.

The recited inner shade l2 has a plurality of apertures l9-l9, etc., arranged in its encompassing walls, preferably in annular bands and of varying sizes and shapes, each aperture being covered or glazed with some thin transparent material such as Cellophane 20-20, which may be plain or vari-colored. A system of apertures 2l-2l, etc., is provided in the walls of recited outer shade, these apertures registering with apertures l9-I9 in like annular disposition and in such manner that light from the aforementioned electric bulb will shine intermittently through the said two systems of apertures and thereby through the rotational movement of the said inner apertures, produce a scintillating eiTect.

Having thus described my invention, I am aware that changes may be made without departing from the spirit of the invention and I claim:

1. The combination with an electric lamp bulb,

of a shade structure supportedby and surrounding said lamp bulb and comprising a disc, a pair of wire loops secured to and depending from said disc, which loops engage and grip the upper portion of said lamp bulb, a wire frame secured to said discv and extending outwardly and downwardly therefrom, an outer shade having a perforated wall supported on the lower portion of said frame, a pintle projecting upwardly from the center of said disc, said pintle having a pointed upper end, an inner shade having a perforated wall, a centrally arranged plate at the top of said inner shade, a conical bearing at the center of said plate, which bearing receives the pointed upper end of said pintle and inclined vanes connected to and disposed between said plate and the upper edge of the wall of said inner shade.

2. The combination as set forth in claim 1 and with walls of thin transparent material closing the perforations in the wall of the inner shade.

HARRY STORM. 

